Faculty Profiles - Daisuke Uyeno

Papers - Daisuke Uyeno

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New record of Cardiodectes medusaeus (Wilson, 1908) (Copepoda: Siphonostomatoida: Pennellidae) from a stranded pearly lanterfish, Myctophum nitidulum Garman (Myctophiformes: Myctophidae) from the Ryukyu Islands, southern Japan . 51 ( 51 ) 67 - 72 2013.5Reviewed

Kazuya Nagasawa, Danny Tang, Daisuke Uyeno, Ione Madinabeitia . Contribution of Ju-shey Ho to the systematics of symbiotic copepods of Japan . Journal of Natural History, the Natural History Museum47 517 - 527 2013.3Contribution of Ju-shey Ho to the systematics of symbiotic copepods of JapanReviewed

K. Nagasawa, D. Tang, D. Uyeno, I. Madinabeitia . Contribution of Ju-shey Ho to the systematics of symbiotic copepods of Japan . Journal of Natural History47 ( 5-12 ) 517 - 527 2013.3

Temnosewellia sp. (Temnocephalida : Temnocephalidae) from freshwater crabs in the Ohsumi Peninsula, Kagoshima, southern Japan . Nature of Kagoshima : an annual magazine for naturalists39 75 - 79 2013.3

Record of Serpentisaccus manificus (Copepoda : Siphonostomatoida : Pennellidae) from the elegant firefish Nemateleotris decora (Perciformes : Ptereleotridae) in the tank of Kagoshima City Aquarium . Nature of Kagoshima : an annual magazine for naturalists39 71 - 74 2013.3

Daisuke Uyeno, Kazuya Nagasawa . The genus Hatschekia (Copepoda: Hatschekiidae) from pufferfishes (Tetraodontiformes: Tetraodontidae) off the Ryukyu Islands, Japan, with descriptions of four new species and a redescription of H. pholas . Folia Parasitologica60 ( 1 ) 61 - 74 2013.2

Daisuke Uyeno, Kazuya Nagasawa . The genus Hatschekia (Copepoda: Siphonostomatoida: Hatschekiidae) from pufferfishes (Pisces: Tetraodontiformes: Tetraodontidae) off the Ryukyu Islands, Japan, with descriptions of four new species and a redescription of H. pholas . Folia Parasitologica, Academy of Sciences Library60 61 - 74 2013.2The genus Hatschekia (Copepoda: Siphonostomatoida: Hatschekiidae) from pufferfishes (Pisces: Tetraodontiformes: Tetraodontidae) off the Ryukyu Islands, Japan, with descriptions of four new species and a redescription of H. pholasReviewed

Daisuke Uyeno . A new genus and species of hatschekiid copepod (Siphonostomatoida) from groupers (Actinopterygii: Serranidae) collected off the Ryukyu Archipelago, Japan . Systematic Parasitology, Springer84 89 - 95 2013.1A new genus and species of hatschekiid copepod (Siphonostomatoida) from groupers (Actinopterygii: Serranidae) collected off the Ryukyu Archipelago, JapanReviewed

Haruna Matsuda, Daisuke Uyeno, Kazuya Nagasawa . A New Species of Hypermastus (Caenogastropoda: Eulimidae) Parasitic on Platybrissus roemeri (Echinoidea: Palaeopneustidae) from off Okinawa-jima Island, Japan . Venus71 105 - 108 2013.1A New Species of Hypermastus (Caenogastropoda: Eulimidae) Parasitic on Platybrissus roemeri (Echinoidea: Palaeopneustidae) from off Okinawa-jima Island, Japan

Hiroko Okawachi, Daisuke Uyeno, Kotaro Ogino, Kazuya Nagasawa . Redescription of Peniculus minuticaudae Shiino, 1956 (Copepoda: Pennellidae) from aquarium-held marine fishes in Japan, with notes on its occurrence and life cycle in captivity . Zoosymposia8 ( 1 ) 56 - 68 2012.12

Publisher：Magnolia Press

Infections with the pennellid Peniculus minuticaudae Shiino, 1956 occurred on three species of marine fishes, the unicorn leatherjacket filefish, Aluterus monoceros (L.), the hairfinned leatherjacket, Paramonacanthus japonicus (Tilesius), and the brown-banded butterflyfish, Roa modesta (Temminck & Schlegel), held at a public aquarium in Kagoshima, Japan. Using specimens from the aquarium and type material, the postmetamorphic and premetamorphic adult females of P. minuticaudae are redescribed. The adult male, copepodid I, and late chalimus stages are described for the first time. The three fish species represent new host records for P. minuticaudae. Fishes were found heavily infected with P. minuticaudae, and extensive lesions associated with infections were found on the skin and around the fin rays of R. modesta. While pennellids usually use two hosts during their life cycle, it is very likely that P. minuticaudae completes its life cycle using one host, as suggested by copepodids, chalimi, adult males, premetamorphic adult females, and postmetamorphic adult females of the parasite all being found on a single fish.

DOI： 10.11646/zoosymposia.8.1.9

Publisher：Magnolia Press

Currently, many fish parasites have been dispersed worldwide via the movement of fishes for food, sport, or the aquarium trade. The freshwater parasitic copepod Neoergasilus japonicus (Harada, 1930) is such an example: it is native to eastern Asia, but has been introduced to southern Asia, Europe, and North America. Since N. japonicus has been regarded as an important alien parasite in such regions, more information is needed on the ecology and host-parasite relationships of this species. In this study, specimens of N. japonicus were collected from the following seven alien freshwater fishes on Okinawa-jima Island, southern Japan: redbelly tilapia (Tilapia zillii), Mozambique tilapia (Oreochromis mossambicus), and Nile tilapia (O. niloticus niloticus) (Perciformes: Cichlidae); bluegill (Lepomis macrochirus) (Perciformes: Centrarchidae); Indian glassy fish (Pseudambassis ranga) (Perciformes: Ambassidae); mosquitofish (Gambusia affinis) (Cyprinodontiformes: Poeciliidae); and vermiculated sailfin catfish (Pterygoplichthys disjunctivus) (Siluriformes: Loricariidae). Copepods occurred on alien fishes taken from reservoirs, but were absent on those from rivers. The dorsal fin was most heavily infected, followed by the anal fin, gills, and body surface. The native freshwater fishes in our sampling locations have been replaced by alien fishes that were introduced from various regions of the world. Our results therefore showed that this low host-specific species can persist by utilizing alien fishes as hosts even after the native fishes have either disappeared or greatly decreased in abundance. A list is also given of fishes (88 species and 3 subspecies in 7 orders and 16 families) reported as hosts of N. japonicus.

DOI： 10.11646/zoosymposia.8.1.11

Daisuke Uyeno, Kazuya Nagasawa . Ttetaloia hoshinoi, a new genus and species of chondracanthid copepod (Poecilostomatoida) parasitic on triplefins (Actinopterygii: Tripterygiidae) from Japanese waters . Zoosymposia8 ( 1 ) 39 - 48 2012.12

Publisher：Magnolia Press

A new genus and species of copepod, Ttetaloia hoshinoi, of the poecilostomatoid family Chondracanthidae is described based on specimens removed from the body surface of three species of triplefins (Perciformes: Tripterygiidae), Enneapterygius etheostomus (Jordan & Snyder) (type host), E. miyakensis Fricke, and Springerichthys bapturus (Jordan & Snyder), collected in the coastal waters of Izu-Oshima Island and the Izu Peninsula, the North Pacific Ocean, Japan. The new genus resembles Diocus by sharing some important characters in the female, such as a squat trunk bearing well-developed posterolateral processes, a pair of minute caudal rami situated on the midventral surface of the genito-abdomen, and unmodified and biramous legs 1 and 2. The male of the new genus also shares distinct body somites, an atrophied tip on the antenna, and three pairs of legs with the males of Diocus. However, it is clearly differentiated from Diocus by the combination of the following characters: the female has a body comprised of a head and trunk, a head composed of the cephalosome fused with the first and second pedigers and bearing two pairs of cephalothoracic processes on the ventrolateral surface, an unsegmented, asetose antennule, and an accessory process on the terminal uncinate segment of the antenna; and the male has the cephalosome distinctly separated from the first pediger and legs 1 to 3 are all highly vestigial, with the first two pairs consisting of setose knobs and the third pair represented by a minute conical process.

DOI： 10.11646/zoosymposia.8.1.7

Daisuke Uyeno, Kazuya Nagasawa . Ttetaloia hoshinoi, a new genus and species of chondracanthid copepod (Poecilostomatoida) parasitic on tripplefins (Actinopterygii: Tripterygiidae) from Japanese waters . Zoosymposia, Magnolia Press8 39 - 48 2012.12Ttetaloia hoshinoi, a new genus and species of chondracanthid copepod (Poecilostomatoida) parasitic on tripplefins (Actinopterygii: Tripterygiidae) from Japanese watersReviewed

Kazuya Nagasawa, Daisuke Uyeno . Utilization of alien freshwater fishes by the parasitic copepod Neoergasilus japonicus (Ergasilidae) on Okinawa-jima Island, Japan, with a list of its known hosts . Zoosymposia, Magnolia Press8 106 - 116 2012.12Utilization of alien freshwater fishes by the parasitic copepod Neoergasilus japonicus (Ergasilidae) on Okinawa-jima Island, Japan, with a list of its known hostsReviewed

Hiroko Okawachi, Daisuke Uyeno, Ogino Kotaro, Kazuya Nagasawa . Redescription of Peniculus minuticaudae Shiino, 1956 (Copepoda: Pennellidae) from aquarium-held marine fishes in Japan, with notes on its occurrence and life cycle in captivity . Zoosymposia, Magnolia Press8 56 - 68 2012.12Redescription of Peniculus minuticaudae Shiino, 1956 (Copepoda: Pennellidae) from aquarium-held marine fishes in Japan, with notes on its occurrence and life cycle in captivityReviewed

A checklist of copepods of the families Dichelesthiidae, Hatschekiidae and Pseudohatschekiidae (Siphonostomatoida) from fishes in Japanese waters (1916-2012) . 51 37 - 59 2012.12

Daisuke Uyeno, Kazuya Nagasawa . Four new species of splanchnotrophid copepods (Poecilostomatoida) parasitic on doridacean nudibranchs (Gastropoda, Opistobranchia) from Japan, with proposition of one new genus . ZooKeys247 1 - 29 2012.11

Daisuke Uyeno, Kaori Wakabayashi, Kazuya Nagasawa . A new species of parasitic copepod, Sarcotretes umitakae sp. n. (Siphonostomatoida, Pennellidae), on the rattail (Actinopterygii, Macrouridae) from the East China Sea, Japan . ZooKeys246 1 - 10 2012.11

Daisuke Uyeno, Kaori Wakabayashi, Kazuya Nagasawa . A new species of parasitic copepod, Sarcotretes umitakae n. sp. (Siphonostomatoida, Pennellidae), on the rattail (Actinopterygii: Macrouridae) from the East China Sea, Japan . Zookeys, Pensoft246 1 - 10 2012.11A new species of parasitic copepod, Sarcotretes umitakae n. sp. (Siphonostomatoida, Pennellidae), on the rattail (Actinopterygii: Macrouridae) from the East China Sea, JapanReviewed

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Papers - Daisuke Uyeno